.\" -*- nroff -*-
.\" Copyright 2013 Los Alamos National Security, LLC. All rights reserved.
.\" Copyright 2010 Cisco Systems, Inc.  All rights reserved.
.\" Copyright 2006-2008 Sun Microsystems, Inc.
.\" Copyright (c) 1996 Thinking Machines Corporation
.\" Copyright (c) 2020      Google, LLC. All rights reserved.
.\" $COPYRIGHT$
.TH MPI_Info_delete 3 "#OMPI_DATE#" "#PACKAGE_VERSION#" "#PACKAGE_NAME#"
.SH NAME
\fBMPI_Info_delete\fP \- Deletes a key/value pair from \fIinfo\fP.

.SH SYNTAX
.ft R
.SH C Syntax
.nf
#include <mpi.h>
int MPI_Info_delete(MPI_Info \fIinfo\fP, const char \fI*key\fP)

.fi
.SH Fortran Syntax
.nf
USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_INFO_DELETE(\fIINFO, KEY, IERROR\fP)
	INTEGER		\fIINFO, IERROR\fP
	CHARACTER*(*)	\fIKEY\fP

.fi
.SH Fortran 2008 Syntax
.nf
USE mpi_f08
MPI_Info_delete(\fIinfo\fP, \fIkey\fP, \fIierror\fP)
	TYPE(MPI_Info), INTENT(IN) :: \fIinfo\fP
	CHARACTER(LEN=*), INTENT(IN) :: \fIkey\fP
	INTEGER, OPTIONAL, INTENT(OUT) :: \fIierror\fP

.fi
.SH INPUT/OUTPUT PARAMETER
.ft R
.TP 1i
info
Info object (handle).

.SH INPUT PARAMETER
.ft R
.TP 1i
key
Key (string).

.SH OUTPUT PARAMETER
.ft R
.TP 1i
IERROR
Fortran only: Error status (integer).

.SH DESCRIPTION
.ft R
MPI_Info_delete deletes a (key,value) pair from \fIinfo\fP. If \fIkey\fP is not defined in \fIinfo\fP, the call raises an error of class MPI_ERR_INFO_NOKEY.

.SH ERRORS
Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument.
.sp
Before the error value is returned, the current MPI error handler is
called. By default, this error handler aborts the MPI job, except for I/O function errors. The error handler may be changed with MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not guarantee that an MPI program can continue past an error.

.SH SEE ALSO
.ft r
MPI_Info_create
.br
MPI_Info_dup
.br
MPI_Info_free
.br
MPI_Info_get
.br
MPI_Info_set
.br

